hi, with regaurd to the cost of the bikinis and postage, maybe shes adding more on the selling cost to keep the postage so low,£2.20 is the cheapest postage for most things now, some peaple say post as large letter so its cheeper, but unless it goes through the letterbox thing in the post office they wont accept it as large letter, ive posted some things and they are so light, theres hardly any weight in them but still charges the standard £2.20, i think buyers thik im over charging, only way to keep the postage really low is to add it on to the bid price, anyway i do think your seller should combine postage, i always do